Sec. 64.042. APPLICATION OF PREPAYMENTS TO LOAN INSTALLMENTS. Unless otherwise agreed in writing, an association shall apply:
(1) a prepayment of principal to the final installment of the obligation until the final installment is fully paid; and
(2) additional prepayments on installments in the inverse order of their maturity.
Acts 1997, 75th Leg., ch. 1008, Sec. 1, eff. Sept. 1, 1997.